View Compilation Error

1_868_1762_19815.cpp:20:17: error: expected ';' at end of member declaration
     Wint& check()//
                 ^
1_868_1762_19815.cpp:20:17: error: expected '}' at end of input
1_868_1762_19815.cpp:19:5: error: expected unqualified-id at end of input
     }
     ^